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2011年9月19日
考试类型:Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If triangle 
above is congruent to triangle 
(not shown), which of the following must be the length of one side of triangle 
?
A. 
B. 
C. 
D. 
E. It cannot be determined from the information given.
正确答案:D 解析: Triangle |
is congruent to triangle 
, so the lengths of the three sides of triangle 
are the same as the lengths of the three sides of triangle 
. Triangle 
is a 
- 
- 
triangle with hypotenuse of length 
, so the other two sides of triangle 
have lengths 
and 
. Therefore, the lengths of the sides of triangle 
must be 
, 
, and 
. Of the choices given, only 
is one of these values.